Alert archive / New Hampshire / 2011
Weather alerts in New Hampshire, May 2011
58 weather alerts in May 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in May 2011. Tap one for its archive.
- Alerts
- 58
- Warnings
- 23
- Watches
- 3
- Advisories
- 5
- Busiest day
- May 27, 201119 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 3:18 AM EDT | Flood Watch | GYX | Coos, Grafton | 19 hr |
| May 7, 12:10 PM EDT | Special Weather Statement | BOX | Hillsborough | 50 min |
| May 7, 12:31 PM EDT | Severe Thunderstorm Warning | BOX | Hillsborough | 29 min |
| May 7, 12:41 PM EDT | Special Weather Statement | BOX | Hillsborough | 49 min |
| May 7, 12:48 PM EDT | Severe Thunderstorm Warning | BOX | Hillsborough | 57 min |
| May 7, 12:57 PM EDT | Special Weather Statement | GYX | Strafford | 48 min |
| May 7, 1:06 PM EDT | Special Weather Statement | GYX | Carroll | 39 min |
| May 7, 1:43 PM EDT | Special Weather Statement | GYX | Rockingham, Strafford | 62 min |
| May 7, 1:58 PM EDT | Special Weather Statement | BOX | Rockingham | 62 min |
| May 7, 2:05 PM EDT | Special Weather Statement | GYX | Rockingham | 55 min |
| May 7, 2:49 PM EDT | Special Weather Statement | BOX | Hillsborough | 41 min |
| May 14, 3:32 PM EDT | Flood Watch | GYX | Carroll, Coos, Grafton | 44 hr |
| May 15, 3:09 PM EDT | Coastal Flood Statement | GYX | Rockingham | 7 hr |
| May 16, 3:09 AM EDT | Coastal Flood Statement | GYX | Rockingham | 12 hr |
| May 16, 3:15 PM EDT | Coastal Flood Warning | GYX | Rockingham | 10 hr |
| May 17, 2:46 AM EDT | Coastal Flood Statement | GYX | Rockingham | 22 hr |
| May 18, 4:01 AM EDT | Coastal Flood Statement | GYX | Rockingham | 22 hr |
| May 19, 5:46 AM EDT | Areal Flood Advisory | GYX | Belknap, Carroll, Grafton, Merrimack, Rockingham, Strafford and 1 more | 119 min |
| May 20, 4:45 PM EDT | Areal Flood Advisory | GYX | Grafton | 3 hr |
| May 21, 7:48 PM EDT | Dense Fog Advisory | BOX | Hillsborough | 4 hr |
| May 24, 1:34 PM EDT | Mesoscale Discussion | SPC | Belknap, Cheshire, Hillsborough, Merrimack, Rockingham, Strafford and 1 more | 116 min |
| May 24, 5:04 PM EDT | Special Weather Statement | GYX | Rockingham | 41 min |
| May 24, 5:33 PM EDT | Special Weather Statement | GYX | Strafford | 42 min |
| May 24, 6:42 PM EDT | Areal Flood Advisory | GYX | Rockingham | 2 hr |
| May 24, 7:08 PM EDT | Special Weather Statement | GYX | Rockingham | 37 min |
| May 24, 7:10 PM EDT | Special Weather Statement | BOX | Rockingham | 50 min |
| May 26, 6:55 PM EDT | Severe Thunderstorm Warning | GYX | Coos | 35 min |
| May 26, 7:26 PM EDT | Severe Thunderstorm Warning | GYX | Coos | 49 min |
| May 26, 7:54 PM EDT | Special Weather Statement | GYX | Coos | 66 min |
| May 26, 8:02 PM EDT | Severe Thunderstorm Warning | GYX | Coos, Grafton | 43 min |
| May 26, 8:36 PM EDT | Severe Thunderstorm Warning | GYX | Coos | 39 min |
| May 26, 9:09 PM EDT | Areal Flood Advisory | GYX | Coos, Grafton | 3 hr |
| May 26, 9:29 PM EDT | Severe Thunderstorm Warning | GYX | Coos, Grafton | 46 min |
| May 26, 11:24 PM EDT | Flash Flood Warning | GYX | Coos, Grafton | 6 hr |
| May 26, 11:29 PM EDT | Severe Thunderstorm Warning | GYX | Coos | 46 min |
| May 27, 12:09 AM EDT | Special Weather Statement | BOX | Cheshire | 66 min |
| May 27, 12:14 AM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 34 min |
| May 27, 12:22 AM EDT | Severe Thunderstorm Warning | GYX | Belknap, Grafton, Merrimack, Sullivan | 53 min |
| May 27, 1:18 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 3 more | 87 min |
| May 27, 1:39 PM EDT | River Flood Warning | GYX | Coos | 15 hr |
| May 27, 1:39 PM EDT | River Flood Warning | GYX | Coos | 38 hr |
| May 27, 1:39 PM EDT | River Flood Warning | GYX | Grafton | 15 hr |
| May 27, 1:39 PM EDT | River Flood Warning | GYX | Grafton, Sullivan | 15 hr |
| May 27, 2:00 PM EDT | Severe Thunderstorm Watch | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough and 4 more | 6 hr |
| May 27, 5:40 PM EDT | Special Weather Statement | GYX | Coos | 50 min |
| May 27, 5:49 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Coos, Grafton, Merrimack and 2 more | 56 min |
| May 27, 6:40 PM EDT | Severe Thunderstorm Warning | GYX | Coos, Grafton | 35 min |
| May 27, 6:55 PM EDT | Severe Thunderstorm Warning | GYX | Coos | 35 min |
| May 27, 8:14 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos, Grafton | 46 min |
| May 27, 8:55 PM EDT | Areal Flood Warning | GYX | Coos | 4 hr |
| May 27, 8:56 PM EDT | Severe Thunderstorm Warning | GYX | Coos | 64 min |
| May 28, 3:34 AM EDT | Special Weather Statement | GYX | Sullivan | 56 min |
| May 28, 4:06 AM EDT | Special Weather Statement | GYX | Coos, Grafton | 54 min |
| May 28, 4:44 AM EDT | River Flood Warning | GYX | Coos | 5 days |
| May 28, 3:15 PM EDT | Special Weather Statement | BOX | Cheshire, Hillsborough | 60 min |
| May 30, 12:22 AM EDT | Special Weather Statement | GYX | Grafton | 38 min |
| May 30, 12:28 AM EDT | Mesoscale Discussion | SPC | Cheshire, Grafton, Sullivan | 92 min |
| May 30, 2:56 AM EDT | Flash Flood Warning | GYX | Carroll, Coos, Grafton | 3 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 14 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 4 |
| Special Weather Statement | 19 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 2 |
| River Flood Warning | 5 |
| Flood Watch | 2 |
| Areal Flood Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Coastal Flood Warning | 1 |
| Coastal Flood Statement | 4 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.